<!DOCTYPE html>
<html lang="en">
<head>
	<meta charset="UTF-8">
	<meta name="viewport" content="width=device-width, initial-scale=1.0">
	<title>isPlainObjectTest</title>
	<script src="../../dist/Free.js"></script>
</head>
<body>
	<script>
		let obj = {};
		console.log($.isPlainObject(obj));
		obj = window;
		console.log($.isPlainObject(obj));
		obj = null;
		// console.log($.isPlainObject(obj,true));
		obj = window;
		console.log($.isPlainObject(obj,true,'不是plainObject'));
	</script>
</body>
</html>